Attachment for air lines



Nov. 27, 1934. F. JADEN ET AL ATTACHMENT FOR AIR LINES 2 Sheets-Sheet 1 Filed Nov. 17. 1935 gwbefltoul lid 1% J 112%!!! JM |ll 3 Ill/l I/l/ 1 7 l .1 I l 1J1 Nov.27,19.34. EN L I 1,982,519"

ATTACHMENT FOR AIR LINES Filed Nov. 17, 1933 2 sheetss eet 2 jwomtom duo: nap,

Patented Nov. 27,1934

ATTACHMENT FOR AIR LINES Fred 1. Jaden and Arthur B. Arnold,

Hastings, Nebr.

Application November 17, 1983, Serial No. 898,518

6 Claims. (Cl. 299-48) This invention relates to attachments for air Reierring to the drawings, in which similar lin s and 8-11 brush an more Particularly, 1 parts are designated by like numerals: tachments adapted to be used in connection with Numeral 4 designates an air linehaving an air what is commonly known as a Schrader chuck. chuck 5 at the end thereof. Numeral 6 represents 5 Air brushes of necessity must have a source a bent tube, preferably of brass or steel, of a 60 of compressed air, and it is obvious that ii the diameter adapted to fit into the chuck 5 and standard air line commonly found around garages surround the chuck valve 7. Secured to the and filling stations could be used, a great deal bent tube 6 by welding, or-by other means, is a of complicated mechanism would be obviated. resilient t rip 8 having a cup portion 9' 10 w have devised an tt t h h receives adapted to receive the chuck5 and fork mem- 65 t g m-m chuck" and permits th controlled bers 10 in the form or a yoke designed to receive operation of the same without dismembering any t k p rtion 11 of the chuck 5. A second part of the appammx strip 12 is welded, or otherwise secured, to the The prime object of our invention is to provide strip 3 d be t p y o sur ound the tube is an attachment for air brushes and the like adapt- 6 thrmlzh a p ning- 13. a collar 14 bein 70 ed to receive an air chuck and permit manual swedged in t Opening 13 so as to slide on the operation of the same so a source of air tube 6. The end 01 the tube 6 is threaded to pressure is provided for the brush. Due to the a nut 16 which has fl pi or sprin steel peculiar construction oi the air chuck, which is 17 extending therefrom and.- secured thereto.

designed to fit over the valve or a tire and be op- The end 18 0! the spring steel 17 is slotted at 1 76 erated by said valve,'the attachment must be so and tfilmed D to iv threaded pr j ction constructed as to readily receive the chuck, and 20 extending from the ll brush 21. The threadat the same time, apparatus much be provided ed Pmjectmn forms P f the attachment for operating the valve in the chuck. and can be screwed into various apparatus be- Another object of they invention is to provide sides an bruhhsuch pparatus will be promeans for controlling the pressure since the ordividefl with a threaded h ll w end adapted to nary air line around the filling station is capable recelve the threaded Projection W hexagon of furni hing air under pressure up to one hum nuts 22 are adapted to be threaded on the prodred pounds and such pressure is not always de- 19mm 20 after the Projection 20 has been placed sired in connection with an air brush. in the slime! member 19, the spherical end 23 of as Another object is to provide a quick detachthe threaded Projection riding in ph ric l able connection between the air line attachment 24 formed in the 111115 The threaded proand the nbmsh, ucleanmg apparatus and iection 20 is hollow and is threadedly connected other devices requiring air pressure. other to the air brush 21 at 25 in alignment with a $5 jects will be disclosed in the specification an Passage 26 extending throuEh the brush claims formingapart hereon The outer belle-801i nut has an Oval face In the drawings; adapted to fit into the slotted member 19, the

Figure 1 is a side elevation, partly broken away nut 22 e fm to 1001! the m in place. in section, showing the air brush attached in op- A P i tube 33 extends ou h a nozzle 40 40 and aligns with a. passage 33' which extends m gzgsggai gxggfifi through the lower portion of the air brush. A

Figure 3 is a front elevation of the nozzle of the glass receptacle 35 is connected t0 e. brush brush; 21 by a screw cap 37. Extending into the glass m 4 is a vertical section of a modified form receptacle 35 is a tube 36 which connects with 45 oi attachment; ttgetgassagmebiizah'l'gf imzzlnegm is sctriilrthregciifig 1 f the mo e eav 3 cen l ope m s i 15mm} 0 mad 84 through which the paint tube 33' extends.

Figure 6 is a side elevation, partly broken away j ll 38 and 39 Ire fo m d at n 11816 in section, 01' still another modified form or conto a h h r i h face of the zzle 40, the 50 nection between the air brush and attachment; face of the nozzle being concave so as to term a Figure '1 is a side elevation, partly broken away $118111; vacuum is the is forced out threugh in section, of the bayonet joint connection '0! a the penings 34, 8 nd and cause the paint modified form; and to be sucked from the jar 85 and discharged Figure 81s a vertical section taken on line 88 through th P int tube h B end p in 55 of Figure l. mixing in the form oi a flat spray. A valve 41,

similar to screw valve 29, controls the paint passage 33. The screw head 30 can be adjusted so as to control the amount of air passing through the passage 27 so that different mixtures and different pressures may be obtained.

As will be evident from Figure 1, the face of the nut 22 adjacent the slotted end 18 of the spring 17 is rounded off so as to slide easily against the furcations of said end. The outer nut constitutes a shoulder or flange on the threaded projection 20, which may be adjusted to insure a yielding pressure by the end 18 sufficient to force the spherical end of projection 20 into air-tight contact with the spherical seat 24 formed in the nut 16.

The handle member shown in Figure 2 is obviously intended as a connection which may be snapped at its opposite ends on to fittings,

one of which is the standard tire chuck of an air compressor pipe, while the other is a special fitting adapted to be connected to any standard spray gun. The connection and disconnection of this handle with respect to the fittings at its opposite ends can be effected almost instantly and without the use of tools of any kind;

The modified forms as shown in Figures 4 and 5 differ from the preferred form in that the spring steel member 17 is lighter and includes a nut 42 placed on the threaded projection 20 between the air brush 21 and the slotted end 18, which serves to prevent accidental displacement. The nut 42 can be tightened against the face of the turnedup slotted end 19 so as to securely hold the connection in place, and can readily be unscrewed when it is desired to use some form of attachment other than the air brush.

The modified form as shown in Figure 6 differs from the preferred form in that a coupling 43 connects the end 15 of the bent tube 6 to a connection 44 having a shoulder 45 freely revolvable in a union nut 46 which in turn is threadedly connected to the threaded projection 20. Packing in the form of a washer 47 is placed between the connection 44 and the end of the projection 20. This permits the air brush to be freely turnable without twisting the air line.

Figure 7 shows a modified form of connection in the form of a bayonet slot. A sleeve 48 is screwthreaded to the end 15 of bent tube 6 and the bayonet slot 49 is formed in the opposite end adapted to receive a pin 50 formed on the projection 20 in lieu of the threads shown in the preferred form. A rubber packing 51 is used to form a seat and seal for the joint.

As actually used in the preferred form, the chuck is inserted in the cup portion 9, the fork members 10 encircling the neck 11 of the chuck 5, the bent tube 6 surrounding the check valve 7. The bent tube 6 and the strip 8 are grasped and pressure exerted on the resilient strip 8 which forces the collar 14 upon the tube 6 bringing the chuck 5 and in turn the check valve '7. into contact with the end of the tube 6 so that air from the air line 4 will pass through the bent tube 6 and in turn through the air brush 21. The fiow of air can be regulated by way of the valve 29, regardless of the pressure in the air line 4. As the air passes through the openings 34, 38 and 39 in the nozzle 40, a partial vacuum is created due to the concave face of the nozzle 40, and the fact that the openings in the nozzle are larger than the openings in the paint tube 33, and paint or other material is sucked up through the tubes 36 and 33 and discharged into the flow of air. The flow of paint oan'be controlled by w" of the valve 41.

If it is desired to substitute some other apparatus for the air brush, it is only necessary to loosen the nut 42 so that it no longer exerts pressure on the slotted members 19 of the spring steel member 17. The threaded projection 20 may then readily be removed and a new piece of apparatus substituted. Of course, upon pressure being released against the resilient strip 8, the chuck 5 will be drawn away from the end of the bent tube 6 and the valve 7 in the chuck will close.

The use of the apparatus is exactly the same in the modified forms shown in Figures 4, 5, 8, '7 and 8, the modifications being directed to the connections betweei'i the air brush and the Schrader chuck" attachment.

It is obvious that our invention is not limited to be used with an air brush per se, as apparatus for cleaning greasy parts with kerosene or removing dust by air pressure, and many other devices, may be substituted for the air brush.

Numerous variations may doubtless be devised by persons skilled in the art without departing from the principles of our invention. We, therefore, desire no limitations to be imposed on our invention, except such as are indicated in the appended claims.

What we claim is:

1. The combination of a valve controlled source of fluid with a valve casing, an inwardly opening valve and a valve line, a tube having one end bent, a resilient strip supported by said tube and bent to a substantial parallel plane. with the major portion of said tube and having a supporting member formed at the end thereof in line with said downturned portion of said tube, a guide member secured to said resilient strip and bent to be spaced from said supporting member, the end of said guide member having an opening therein through which the bent portion of said tube is freely slidable, said valve casing being supported by said supporting member with said valve in position to be operated by movement of said bent portion in said opening, and resilient clamping means extending from the other end of said tube and adapted to be sprung into and out of operative connection with a spray gun.

2. The combination of a valve controlled source of fluid with a valve casing, an inwardly opening valve and a valve line, a tube having one end bent, a resilient strip secured to said tube and bent to a substantial parallel plane with the major portion of said tube and having a supporting member formed at the end thereof in line with said downturned portion of said tube, a guide member secured at one end to said resilient strip and bent to have its other end spaced from said supporting member, the said other end having an opening through which the bent portion of said tube is freely slidable, said valve and casing being supported by said supporting member with the valve in position to be operated by sliding movement of the said bent portion in said opening.

3. The combination with a spray gun having a passageway for air extending therethrough, a pipe projecting from said gun and communicating with said passageway, a flange on said pipe, an air compressor pipe having a tire chuck at the end thereof, a handle including an air tube, means at one end of said handle for clamping the tire chuck against one end of said tube, and means at the other end of the tube cooperating with said flange for clamping said other and against the end of said projecting pipe, said handle including parts relatively movable to operate said tire chuck.

4. The combination with a spray gun having a pipe projecting therefrom in alinement with an air passageway extending through said gun, of an air compressor pipe having a tire chuck controlling the flow 01 air therefrom, a handle comprising relatively movable parts including a tube, and yielding means at the opposite ends or said tube adapted to be snapped" on to said pipe and tire chuck to establish communication through said tube between said pipe and chuck, said handle being operable by movement of said parts toward each other to operate said chuck.

5. A handle for a spray gun comprising a pipe adapted to be connected to a spray gun in communication with an air passageway extending through the gun, a handle including an air tube, and resilient means at opposite ends of said tube adapted to be "snapped" into operative engagement with said pipe and the the chuck of an air compressor pipe, the resilient means engaging the tire chuck being movable toward said tube to operate the air valve in said chuck.

6. A handle construction for an air spray gun oi the type having an air conduit, comprising an open ended air tube having a coupling at one end adapted to connect it to the air conduit of said spray gun, the opposite end being adapted to be placed into communication with the chuck of an air hose, a hand hold carried by said air tube, said hand hold including a seat for an air hose chuck oi the type having a normally closed check valve,said tube and said hand hold being relatively movable ior bringing said opposite end of said air tube into communication with and into valve opening relation to the air chuck. 

